http://www.tor.com/blogs/2012/04/tor...to-go-drm-free
I've had my eye an a few of their books, but since I'm unwilling to buy books with DRM on them I've gotten them from the library instead. Hopefully they actually go through with it. Tor tried to go with Baen Webscriptions years ago and had it nixed by their MacMillan overlords.
Greg Weeks